Internal Medicine, Gastroenterology · Annapolis, MD
NPI
1558399436
Since 2006
Specialty
Internal Medicine, Gastroenterology
Code 207RG0100X
Group practices
1
Medicare group memberships
Hospitals
0
Hospital affiliations
621 Ridgely Ave, Suite 201
Annapolis, MD, 21401
Phone (410) 224-4887
Groups this clinician bills Medicare through
Medicare paid, 2024
$64K
2,050 services
Medicare patients, 2024
137
Average age 76
Drug cost, 2024
$303K
844 prescriptions
Company payments, 2025
$150
From 4 companies
Procedures and visits billed to Original Medicare, 2024
In 2024, the most common Medicare service billed by Charles E King Jr. was code 99214 (office e&m - established), 115 times for 90 patients. In total Charles E King Jr. billed 2,050 services in 24 codes, and Medicare paid $64K.
| Code |
|---|
Official US government data: the national provider registry and Medicare enrollment records, linked by NPI. Last update of this record: 2015-02-19.
| Setting |
|---|
| Services |
|---|
| Patients |
|---|
| Paid per service |
|---|
| Medicare paid |
|---|
| 99214 Office E&M - Established | Office | 115 | 90 | $94.13 | $11K |
| 46221 Digestive/Gastrointestinal | Office | 43 | 25 | $227.96 | $9,802 |
| 99213 Office E&M - Established | Office | 29 | 25 | $68.88 | $1,997 |
| 46600 Digestive/Gastrointestinal | Office | 26 | 22 | $87.72 | $2,281 |
| 99212 Office E&M - Established | Office | 18 | 15 | $39.19 | $705 |
By year: 2022 $136K for 9,081 services; 2023 $93K for 14,378 services; 2024 $64K for 2,050 services.
Medicare prescription drug claims, 2024
In 2024, the drug Charles E King Jr. prescribed most often to Medicare patients was Famotidine, with 249 prescriptions and refills. In total Charles E King Jr. wrote 844 Medicare prescriptions that cost $303K.
| Drug | Claims | 30-day fills | Patients | Cost |
|---|---|---|---|---|
| Famotidine Generic | 249 | 680 | 73 | $5,634 |
| Pantoprazole Sodium Generic | 135 | 329 | 33 | $2,047 |
| Ursodiol Generic | 77 | 183 | 20 | $17K |
| Omeprazole Generic | 58 | 174 | 20 | $882 |
| Mesalamine Er Mesalamine | 56 | 128 | 14 | $49K |
| Sucralfate Generic | 26 | 76 | 13 | $913 |
| Creon Lipase/Protease/Amylase | 21 | 55 | Under 11 | $63K |
| Balsalazide Disodium Generic | 19 | 55 | Under 11 | $3,947 |
| Bethanechol Chloride Generic | 19 | 33 | Under 11 | $891 |
| Lansoprazole Generic | 19 | 57 | Under 11 | $703 |
| Mesalamine Generic | 14 | 36 | Under 11 | $9,793 |
| Sod Sulf-Potass Sulf-Mag Sulf Sodium, Potassium,mag Sulfates | 13 | 13 | 13 | $738 |
| Humira(Cf) Pen Adalimumab | 12 | 12 | Under 11 | $96K |
| Esomeprazole Magnesium Generic | 11 | 33 | Under 11 | $426 |
Brand drugs: 59 claims; generic drugs: 785 claims.
Money and other things of value reported by the companies
In 2025, drug and medical device companies paid Charles E King Jr. $150 ($150 in general payments such as food, travel and fees) from 4 companies. The largest payer was Abbvie Inc. with $87.04.
Official US government data on Original Medicare services, Medicare prescription drug plans and the payments drug and device companies must report. Services with fewer than 11 patients and drugs with fewer than 11 claims are not published. Procedure codes are shown by number with their public category.